Installation of downspout and tie rod in steel structure engineering

If there is a gutter, the steel structure engineering design rod should not be close to the top of the column, otherwise it may not be able to install the downspout. In addition, the gutter downspout and tie rod and the position of the column support must be considered, otherwise either hit the tie rod, or hit the column support. The layout of the bolt position of the flower basket on the horizontal support should be reasonable, not too far away from the main beam, and should consider the convenience of installation. Otherwise, the workers must lean out to tighten the bolts of the basket or use the ladder to climb up. In addition, we should also consider the position of the corner support, and do not fight with the corner support in the layout of horizontal support. Do not unilaterally consider the "tension edge, compression edge" and other factors on the purlin strip hole, play the hole with unequal distance between the upper and lower, because it is easy to install reverse, the result is adverse. Doors and Windows, etc., can not be generalized, because in the construction of steel structure you can not ensure that the plate is located in the peak or trough of the pressure plate. When doing large-scale projects, the deepening chart number must take into account the convenience of production, delivery and installation. For the "load and other data" provided by Party A must understand its real meaning, because Party A often do not understand these too professional things. We need to put ourselves in other's shoes. If the preliminary work is done well, the follow-up work will be much easier to carry out. The position of the high-strength bolt should be reasonable, and the construction space of the twister and torque wrench should be considered. It should not be installed, because the space is too small, the twister and torque wrench can not be in place, so that the high-strength bolt can not be screwed off or the high-strength bolt can not be tightened. I have encountered some designs that do not even give the location of the sleeve. High strength bolted connection plates, if possible, should be arranged in a symmetrical way. Once there were 4 above and 6 below the middle contact points, and the workshop workers accidentally put part of them upside down. I'm sorry to come on site. If there is a light steel structure maintenance brick wall, be sure to dock with the construction units and construction units in advance, because it involves two aspects of the civil and steel structure, because the civil brick wall is likely to be uneven, but choi steel pan of water and can't do big and small, the result is choi steel and brick wall crack big and small, choi steel and brick wall is difficult to do a good job in water treatment, Let the construction unit have in mind. Anchor bolts are generally buried by civil engineering units. Steel structure manufacturers give drawings. Sometimes, they can turn the position of anchor bolts 90 degrees, and so on. Still HAVE DIMENSIONAL deviation TO give YOU offset 50~ 100MM also not strange. The connection between the wind column and the steel beam should be connected with the spring plate as far as possible, because the middle span of the beam is relatively large after the installation of the flexion, and if the beam of the gable is connected with the wind column with bolts, it will cause uneven roof. Roof purlin layout and steel beam details to carefully check, often found that the roof purlin layout and steel beam details of the purlin number. The node plate has no stiffening rib, and some designers have not designed it, which leads to the deformation of the node plate during subsequent welding. When the beam and column do tie rod connecting plate, the hole is not properly extended. In some places, because the connection plate on the tie rod is too long, the space is too small, and the tie rod is too long to put in. This is often the case for some secondary beam structures. When you make a strip window, the stiffeners of the purlin support plate face the window, so when the strip window goes to this rib, it can't go through. In addition, use countersunk screws as far as possible when installing purlins with strip Windows. The upper bar window of the doorway is too close to the upper frame of the doorway to accommodate the canopy. The strip between the upper and lower adjacent purlin distances of the window frame is not arranged properly, and the end of the strip conflicts with the window frame. The types of steel plates and high strength bolts are as few as possible, and the cost of material testing should be considered. Purlin connecting plate should not be designed as square as possible, the workshop is easy to upside down assembly. The inner gutter does not do insulation layer, indoor formation of a "cold bridge", water and condensation and other phenomena. Should be brushed under the gutter anti-condensation paint, or spray polyurethane insulation layer, can also do other insulation treatment. Roofing plate sandwich plate, then estimated within half a year (if the span is a little larger) will leak. A check roof board outer plate has a few broken marks, because did not consider its repeated thermal expansion and cold contraction under the sun.